Nacre-inspired polymer composites with high thermal conductivity and enhanced mechanical strength. (June 2019)

• Record Type: Journal Article
• Authors: Zhang, Tao; Sun, Jiajia; Ren, Linlin; Yao, Yimin; Wang, Mingmei; Zeng, Xiaoliang; Sun, Rong; Xu, Jian-Bin; Wong, Ching-Ping
• Is Part Of: Composites. Volume 121(2019)
• Page Start: 92
• Page End: 99
• Publication Date: 2019-06
• Subjects: Thermal conductivity -- Mechanical strength -- Polymer composites -- Boron nitride; Composite materials -- Periodicals; Manufacturing processes -- Periodicals; Composite materials; Manufacturing processes; Periodicals; 620.11805
• DOI: 10.1016/j.compositesa.2019.03.017
• Languages: English
• ISSNs: 1359-835X

Abstract

Abstract: Polymer composites with high thermal conductivity are attracting increasing interest as thermal-management materials owing to material abundance, easy processing and low cost. However, conventional preparation of thermally conductive polymer composites through adding high-loading inorganic fillers usually suffers from poor mechanical properties. Here, inspired by the microstructure of natural nacre, we report on fine ordered Ag-BN/epoxy resin composites via interfacial manipulation of boron nitrides with Ag nanoparticles and hot-pressing induced orientation process. The as-prepared nacre-like compounds have both high thermal conductivity (up to 23.1 W m −1 K −1 ) and mechanical strength (tensile strength of 80.3 MPa). This work provides a novel insight into the fabrication of polymer composites with superior mechanical strength in thermal management field.